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Detail of Certain Balance Sheet Accounts (Tables)

12 Months Ended

Dec. 31, 2014

Detail of Certain Balance Sheet Accounts

Schedule of activity in allowance for doubtful accounts

        Activity in our allowance for doubtful accounts consists of the following (in thousands):

		December 31,
		2014			2013			2012
Balance at beginning of year		$	4,460		$	6,333		$	4,615
Additions for bad debt expense			1,275			19			2,753
Deductions for uncollectible receivables written off, net of recoveries			(1,650	)		(1,892	)		(1,090	)
Allowance for doubtful accounts of acquired companies at date of acquisition			294			—			55
​	​	​	​	​	​	​	​	​	​	​
Balance at end of year		$	4,379		$	4,460		$	6,333
​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​

Schedule of other current liabilities

        Other current liabilities consist of the following (in thousands):

		December 31,
		2014			2013
Accrued warranty costs		$	7,227		$	6,795
Accrued job losses			1,329			758
Accrued rent and lease obligations			953			673
Accrued sales and use tax			1,945			1,821
Deferred revenue			1,538			1,320
Liabilities due to former owners			520			4,054
Other current liabilities			11,302			12,747
​	​	​	​	​	​	​	​
		$	24,814		$	28,168
​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​

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Tabular disclosure of the components of accrued liabilities.

+ References

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- Definition

Tabular disclosure of credit losses for current financing receivables (such as trade and accounts receivable), including a rollforward of the balance. An alternative caption includes allowance for doubtful accounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524

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